/* ==========================================
   VNAD.net - Modern Landing Page
   Google-inspired Blue Design System
   ========================================== */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Google-inspired Blue Palette */
    --google-blue: #4285F4;
    --google-blue-dark: #1A73E8;
    --google-blue-darker: #174EA6;
    --google-blue-light: #E8F0FE;
    --google-blue-50: #F0F6FF;

    /* Secondary Accents */
    --accent-red: #EA4335;
    --accent-yellow: #FBBC04;
    --accent-green: #34A853;
    --accent-cyan: #00BCD4;

    /* Neutrals */
    --ink-900: #0B1220;
    --ink-800: #1a2540;
    --ink-700: #2d3b5e;
    --ink-600: #4a5677;
    --ink-500: #6b7794;
    --ink-400: #9ca5be;
    --ink-300: #cfd4e4;
    --ink-200: #e4e8f2;
    --ink-100: #f1f4fa;
    --ink-50: #f8faff;
    --white: #ffffff;

    /* Gradients */
    --gradient-blue: linear-gradient(135deg, #4285F4 0%, #1A73E8 100%);
    --gradient-blue-bright: linear-gradient(135deg, #00C6FF 0%, #4285F4 50%, #1A73E8 100%);
    --gradient-hero: linear-gradient(135deg, #0B1220 0%, #174EA6 55%, #1A73E8 100%);
    --gradient-mesh: radial-gradient(at 20% 20%, #4285F4 0px, transparent 50%),
                     radial-gradient(at 80% 0%, #00BCD4 0px, transparent 50%),
                     radial-gradient(at 80% 80%, #1A73E8 0px, transparent 50%),
                     radial-gradient(at 20% 80%, #174EA6 0px, transparent 50%);
    --gradient-text: linear-gradient(135deg, #4285F4 0%, #00BCD4 100%);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(11, 18, 32, 0.06);
    --shadow-sm: 0 2px 8px rgba(11, 18, 32, 0.06);
    --shadow-md: 0 8px 24px rgba(26, 115, 232, 0.08);
    --shadow-lg: 0 20px 48px rgba(26, 115, 232, 0.12);
    --shadow-xl: 0 32px 64px rgba(26, 115, 232, 0.18);
    --shadow-blue: 0 12px 30px rgba(66, 133, 244, 0.35);
    --shadow-glow: 0 0 40px rgba(66, 133, 244, 0.4);

    /* Radius */
    --r-sm: 10px;
    --r-md: 16px;
    --r-lg: 24px;
    --r-xl: 32px;
    --r-full: 999px;

    /* Transition */
    --t-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --t-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI',
                 Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink-900);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ========== BUTTONS ========== */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--r-full);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--t-base);
    white-space: nowrap;
    overflow: hidden;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, #5A95FF 0%, #2A83F8 100%);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 44px rgba(66, 133, 244, 0.5);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary {
    position: relative;
    isolation: isolate;
}

.btn-primary > * {
    position: relative;
    z-index: 1;
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--google-blue-dark);
    border-color: var(--white);
    transform: translateY(-3px);
}

.services .btn-outline,
.pricing .btn-outline {
    color: var(--google-blue-dark);
    border-color: var(--ink-200);
}

.services .btn-outline:hover,
.pricing .btn-outline:hover {
    background: var(--google-blue-dark);
    color: var(--white);
    border-color: var(--google-blue-dark);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 16px;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-arrow {
    transition: transform 0.3s;
    display: inline-block;
}

.btn:hover .btn-arrow {
    transform: translateX(5px);
}

/* ========== TOP BAR ========== */
.top-bar {
    background: linear-gradient(90deg, #0B1220, #174EA6, #0B1220);
    color: var(--white);
    padding: 10px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.top-bar-text {
    font-weight: 500;
    opacity: 0.95;
}

.top-bar-contact a {
    font-weight: 700;
    color: #FBBC04;
}

/* ========== NAVBAR ========== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--ink-100);
    z-index: 1000;
    transition: var(--t-base);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 22px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-blue);
    color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    box-shadow: var(--shadow-blue);
    position: relative;
    overflow: hidden;
}

.logo-mark {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    filter: drop-shadow(0 8px 18px rgba(66, 133, 244, 0.35));
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo-mark-text {
    width: 42px;
    height: 42px;
    background: #1A73E8;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 900;
    color: white;
    flex-shrink: 0;
    letter-spacing: -1px;
    font-style: italic;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 14px rgba(26, 115, 232, 0.35);
}

.logo:hover .logo-mark-text {
    transform: scale(1.05);
}

.logo:hover .logo-mark {
    transform: rotate(-8deg) scale(1.05);
}

.logo-text {
    color: var(--ink-900);
    letter-spacing: -0.5px;
}

.logo-text small {
    color: var(--google-blue);
    font-size: 14px;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    gap: 8px;
    background: var(--ink-50);
    padding: 6px;
    border-radius: var(--r-full);
    border: 1px solid var(--ink-100);
}

.nav-menu a {
    color: var(--ink-700);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 18px;
    border-radius: var(--r-full);
    transition: var(--t-base);
}

.nav-menu a:hover {
    color: var(--google-blue-dark);
    background: var(--white);
    box-shadow: var(--shadow-xs);
}

.mobile-menu-btn {
    display: none;
    background: var(--ink-50);
    border: 1px solid var(--ink-100);
    border-radius: var(--r-sm);
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 22px;
    height: 2.5px;
    background: var(--ink-900);
    border-radius: 2px;
    transition: var(--t-base);
}

/* ========== HERO ========== */
.hero {
    position: relative;
    background: var(--gradient-hero);
    color: var(--white);
    padding: 100px 0 120px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 20%, rgba(66, 133, 244, 0.4) 0%, transparent 40%),
        radial-gradient(circle at 80% 50%, rgba(0, 188, 212, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 50% 90%, rgba(26, 115, 232, 0.4) 0%, transparent 40%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
    pointer-events: none;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.shape-1 {
    width: 520px;
    height: 520px;
    background: #4285F4;
    top: -200px;
    right: -100px;
    animation: float 10s ease-in-out infinite;
}

.shape-2 {
    width: 440px;
    height: 440px;
    background: #00BCD4;
    bottom: -180px;
    left: -120px;
    animation: float 12s ease-in-out infinite reverse;
}

.shape-3 {
    width: 320px;
    height: 320px;
    background: #1A73E8;
    top: 40%;
    left: 45%;
    opacity: 0.3;
    animation: float 14s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -40px) scale(1.08); }
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px 20px;
    border-radius: var(--r-full);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #34A853;
    border-radius: 50%;
    box-shadow: 0 0 12px #34A853;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
    font-size: clamp(2rem, 4.6vw, 3.8rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.text-gradient-red,
.text-gradient-blue {
    background: linear-gradient(135deg, #4285F4 0%, #00BCD4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.text-gradient-blue {
    background: linear-gradient(135deg, #00C6FF 0%, #4285F4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-white {
    background: linear-gradient(135deg, #ffffff 0%, #00C6FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 32px;
    max-width: 580px;
    line-height: 1.75;
}

.hero-description strong {
    color: var(--white);
    font-weight: 700;
}

.hero-stats {
    display: flex;
    gap: 36px;
    margin-bottom: 40px;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item {
    flex: 1;
}

.stat-number {
    font-size: 30px;
    font-weight: 900;
    background: linear-gradient(135deg, #ffffff 0%, #00C6FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 6px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.trust-text {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
}

.trust-logos {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.trust-logo {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--r-full);
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
}

/* Hero Visual - Floating 3D Cards */
.hero-visual {
    position: relative;
    height: 560px;
    perspective: 1200px;
}

.hero-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: var(--r-lg);
    padding: 26px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35),
                0 0 0 1px rgba(255, 255, 255, 0.1);
    color: var(--ink-900);
    animation: cardFloat 5s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes cardFloat {
    0%, 100% { transform: translateY(0) rotate(var(--rotate, 0deg)); }
    50% { transform: translateY(-14px) rotate(var(--rotate, 0deg)); }
}

.card-youtube {
    top: 40px;
    left: 0;
    width: 270px;
    --rotate: -4deg;
    animation-delay: 0s;
}

.card-facebook {
    top: 140px;
    right: 0;
    width: 270px;
    --rotate: 4deg;
    animation-delay: 1.5s;
}

.card-stat {
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
    animation-delay: 3s;
    --rotate: 0deg;
    padding: 22px 28px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.platform-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.platform-icon svg {
    width: 24px;
    height: 24px;
}

.youtube-icon {
    background: linear-gradient(135deg, #FF0000, #CC0000);
    box-shadow: 0 8px 20px rgba(255, 0, 0, 0.3);
}

.facebook-icon {
    background: var(--gradient-blue);
    box-shadow: 0 8px 20px rgba(66, 133, 244, 0.3);
}

.card-title {
    font-weight: 800;
    font-size: 15px;
}

.card-metric {
    margin-bottom: 18px;
}

.metric-value {
    font-size: 36px;
    font-weight: 900;
    background: linear-gradient(135deg, #FF0000, #CC0000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    letter-spacing: -1px;
}

.card-facebook .metric-value {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-label {
    font-size: 12px;
    color: var(--ink-500);
    margin-top: 6px;
    font-weight: 500;
}

.card-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 56px;
}

.bar {
    flex: 1;
    background: linear-gradient(to top, #FF0000, #FF6B6B);
    border-radius: 4px 4px 0 0;
    transition: height 0.8s;
}

.card-progress {
    position: relative;
}

.progress-label {
    font-size: 12px;
    color: var(--ink-500);
    margin-bottom: 8px;
    font-weight: 500;
}

.progress-bar {
    height: 8px;
    background: var(--ink-100);
    border-radius: var(--r-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 92%;
    background: var(--gradient-blue);
    border-radius: var(--r-full);
    animation: fillProgress 2.5s ease-out;
}

@keyframes fillProgress {
    from { width: 0; }
    to { width: 92%; }
}

.progress-value {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 14px;
    font-weight: 800;
    color: var(--google-blue-dark);
}

.stat-icon {
    font-size: 40px;
}

.stat-big {
    font-size: 26px;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-small {
    font-size: 12px;
    color: var(--ink-500);
    margin-top: 4px;
}

/* ========== SECTIONS ========== */
.section-header {
    text-align: center;
    max-width: 740px;
    margin: 0 auto 72px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--google-blue-light);
    color: var(--google-blue-dark);
    border-radius: var(--r-full);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.2px;
    margin-bottom: 18px;
    border: 1px solid rgba(66, 133, 244, 0.2);
}

.section-badge.light {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.section-title {
    font-size: clamp(1.9rem, 3.8vw, 3rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: -1px;
    color: var(--ink-900);
}

.section-description {
    font-size: 17px;
    color: var(--ink-500);
    line-height: 1.75;
}

/* ========== SERVICES ========== */
.services {
    padding: 120px 0;
    background: var(--ink-50);
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(66, 133, 244, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.services-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.service-card {
    position: relative;
    background: var(--white);
    border-radius: var(--r-xl);
    padding: 48px 42px;
    box-shadow: var(--shadow-md);
    transition: var(--t-base);
    overflow: hidden;
    border: 1px solid var(--ink-100);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.service-youtube::before {
    background: linear-gradient(90deg, #FF0000, #4285F4);
}

.service-facebook::before {
    background: var(--gradient-blue);
}

.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(66, 133, 244, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--google-blue);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover::after {
    opacity: 1;
}

.service-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #FBBC04, #F9A825);
    color: var(--ink-900);
    border-radius: var(--r-full);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.5px;
    box-shadow: 0 6px 16px rgba(251, 188, 4, 0.4);
}

.service-icon-wrap {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 26px;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.service-icon-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
}

.service-icon-wrap svg {
    width: 44px;
    height: 44px;
    position: relative;
    z-index: 1;
}

.youtube-wrap {
    background: linear-gradient(135deg, #FF0000, #CC0000);
    box-shadow: 0 16px 32px rgba(255, 0, 0, 0.3);
}

.facebook-wrap {
    background: var(--gradient-blue);
    box-shadow: var(--shadow-blue);
}

.service-title {
    font-size: 28px;
    font-weight: 900;
    margin-bottom: 14px;
    letter-spacing: -0.8px;
    position: relative;
}

.service-desc {
    color: var(--ink-500);
    margin-bottom: 26px;
    font-size: 15px;
    line-height: 1.75;
    position: relative;
}

.service-features {
    margin-bottom: 32px;
    position: relative;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    color: var(--ink-700);
    font-size: 14.5px;
    font-weight: 500;
}

.check {
    width: 22px;
    height: 22px;
    background: var(--google-blue-light);
    color: var(--google-blue-dark);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

.service-cta {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: var(--r-full);
    transition: var(--t-base);
    color: var(--google-blue-dark);
    background: var(--google-blue-light);
}

.service-cta:hover {
    background: var(--gradient-blue);
    color: var(--white);
    transform: translateX(6px);
    box-shadow: var(--shadow-blue);
}

.service-youtube .service-cta {
    color: #CC0000;
    background: rgba(255, 0, 0, 0.08);
}

.service-youtube .service-cta:hover {
    background: linear-gradient(135deg, #FF0000, #CC0000);
    color: var(--white);
    box-shadow: 0 10px 24px rgba(255, 0, 0, 0.3);
}

/* ========== STATS BANNER ========== */
.stats-banner {
    padding: 80px 0;
    background: var(--gradient-hero);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.stats-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

.stats-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-box {
    padding: 24px;
    position: relative;
}

.stat-box:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    bottom: 20%;
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.stat-big-number {
    font-size: clamp(2.2rem, 4.2vw, 3.4rem);
    font-weight: 900;
    background: linear-gradient(135deg, #ffffff 0%, #00C6FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    line-height: 1;
    letter-spacing: -1.5px;
}

.stat-big-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========== PRICING ========== */
.pricing {
    padding: 120px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.pricing::before {
    content: '';
    position: absolute;
    top: 10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(66, 133, 244, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.pricing-tabs {
    position: relative;
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 56px;
    flex-wrap: wrap;
    background: var(--ink-50);
    padding: 8px;
    border-radius: var(--r-full);
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid var(--ink-100);
}

.tab-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: transparent;
    border: none;
    border-radius: var(--r-full);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    color: var(--ink-600);
    transition: var(--t-base);
}

.tab-btn:hover {
    color: var(--google-blue-dark);
}

.tab-btn.active {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.tab-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
    color: var(--white);
}

.youtube-color {
    background: linear-gradient(135deg, #FF0000, #CC0000);
}

.facebook-color {
    background: var(--gradient-blue);
    font-family: Georgia, serif;
    font-style: italic;
}

.pricing-grid {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    position: relative;
}

.pricing-grid.active {
    display: grid;
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.pricing-card {
    position: relative;
    background: var(--white);
    border: 2px solid var(--ink-100);
    border-radius: var(--r-xl);
    padding: 44px 36px;
    transition: var(--t-base);
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--google-blue);
}

.pricing-card.featured {
    background: linear-gradient(135deg, #174EA6 0%, #1A73E8 55%, #4285F4 100%);
    color: var(--white);
    border: 2px solid rgba(66, 133, 244, 0.3);
    transform: scale(1.05);
    box-shadow: 0 40px 80px rgba(26, 115, 232, 0.3);
}

.pricing-card.featured::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 0%, rgba(66, 133, 244, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 100%, rgba(0, 188, 212, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.pricing-card.featured > * {
    position: relative;
    z-index: 1;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.featured-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #FBBC04, #F9A825);
    color: var(--ink-900);
    padding: 8px 22px;
    border-radius: var(--r-full);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    box-shadow: 0 8px 20px rgba(251, 188, 4, 0.4);
    z-index: 2;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-name {
    font-size: 22px;
    font-weight: 900;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.pricing-tag {
    font-size: 13px;
    color: var(--ink-500);
    font-weight: 500;
}

.pricing-card.featured .pricing-tag {
    color: rgba(255, 255, 255, 0.75);
}

.pricing-price {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 2px dashed var(--ink-200);
}

.pricing-card.featured .pricing-price {
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

.currency {
    font-size: 14px;
    color: var(--ink-500);
    font-weight: 500;
}

.pricing-card.featured .currency {
    color: rgba(255, 255, 255, 0.7);
}

.amount {
    font-size: 42px;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0 4px;
    letter-spacing: -1.5px;
    display: inline-block;
}

.pricing-card.featured .amount {
    background: linear-gradient(135deg, #ffffff 0%, #00C6FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.period {
    display: block;
    font-size: 13px;
    color: var(--ink-500);
    margin-top: 6px;
}

.pricing-card.featured .period {
    color: rgba(255, 255, 255, 0.7);
}

.pricing-features {
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 14.5px;
    color: var(--ink-700);
    border-bottom: 1px solid var(--ink-100);
    font-weight: 500;
}

.pricing-card.featured .pricing-features li {
    color: rgba(255, 255, 255, 0.9);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.pricing-card.featured .btn-primary {
    background: var(--white);
    color: var(--google-blue-dark);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.pricing-card.featured .btn-primary::before {
    background: linear-gradient(135deg, #FBBC04, #F9A825);
}

.pricing-card.featured .btn-primary:hover {
    color: var(--ink-900);
}

.pricing-note {
    position: relative;
    max-width: 720px;
    margin: 56px auto 0;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 22px 26px;
    background: var(--google-blue-light);
    border-left: 4px solid var(--google-blue);
    border-radius: var(--r-md);
}

.note-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.pricing-note p {
    font-size: 14px;
    color: var(--ink-700);
    margin: 0;
    line-height: 1.7;
}

/* ========== PROCESS ========== */
.process {
    padding: 120px 0;
    background: var(--ink-50);
    position: relative;
    overflow: hidden;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    position: relative;
}

.process-card {
    position: relative;
    background: var(--white);
    border-radius: var(--r-lg);
    padding: 44px 30px;
    text-align: center;
    transition: var(--t-base);
    border: 1px solid var(--ink-100);
    overflow: hidden;
}

.process-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-blue);
    opacity: 0;
    transition: opacity 0.4s;
    z-index: 0;
}

.process-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.process-card:hover::before {
    opacity: 1;
}

.process-card > * {
    position: relative;
    z-index: 1;
    transition: color 0.4s;
}

.process-card:hover h3,
.process-card:hover p {
    color: var(--white);
}

.process-number {
    position: absolute;
    top: 20px;
    right: 26px;
    font-size: 52px;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.2;
    line-height: 1;
    transition: opacity 0.4s;
}

.process-card:hover .process-number {
    opacity: 0.4;
}

.process-icon {
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--google-blue-light);
    border-radius: 16px;
    margin-bottom: 20px;
    transition: transform 0.4s;
}

.process-card:hover .process-icon {
    transform: scale(1.1) rotate(-5deg);
}

.process-card h3 {
    font-size: 19px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--ink-900);
}

.process-card p {
    font-size: 14px;
    color: var(--ink-500);
    line-height: 1.75;
}

/* ========== WHY US ========== */
.why-us {
    padding: 120px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.why-card {
    position: relative;
    padding: 40px 32px;
    background: var(--ink-50);
    border-radius: var(--r-lg);
    transition: var(--t-base);
    border: 1px solid var(--ink-100);
    overflow: hidden;
}

.why-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(66, 133, 244, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s;
}

.why-card:hover {
    background: var(--white);
    border-color: var(--google-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.why-card:hover::before {
    opacity: 1;
}

.why-icon {
    position: relative;
    margin-bottom: 22px;
    display: inline-flex;
    width: 64px;
    height: 64px;
    align-items: center;
    justify-content: center;
    background: var(--google-blue-light);
    border-radius: 16px;
}

.why-card h3 {
    position: relative;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--ink-900);
}

.why-card p {
    position: relative;
    font-size: 14.5px;
    color: var(--ink-500);
    line-height: 1.75;
}

/* ========== TESTIMONIALS ========== */
.testimonials {
    padding: 120px 0;
    background: var(--ink-50);
    position: relative;
    overflow: hidden;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    position: relative;
    background: var(--white);
    border-radius: var(--r-lg);
    padding: 36px 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--t-base);
    border: 1px solid var(--ink-100);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 12px;
    right: 24px;
    font-size: 120px;
    font-weight: 900;
    line-height: 1;
    color: var(--google-blue-light);
    font-family: Georgia, serif;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--google-blue);
}

.stars {
    color: #FBBC04;
    font-size: 18px;
    margin-bottom: 16px;
    letter-spacing: 2px;
    position: relative;
}

.testimonial-text {
    font-size: 15px;
    color: var(--ink-700);
    line-height: 1.75;
    margin-bottom: 26px;
    position: relative;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 22px;
    border-top: 1px solid var(--ink-100);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 16px;
    box-shadow: var(--shadow-blue);
    flex-shrink: 0;
}

.author-name {
    font-weight: 800;
    font-size: 15px;
    color: var(--ink-900);
}

.author-role {
    font-size: 13px;
    color: var(--ink-500);
}

/* ========== FAQ ========== */
.faq {
    padding: 120px 0;
    background: var(--white);
    position: relative;
}

.faq-list {
    max-width: 840px;
    margin: 0 auto;
}

.faq-item {
    background: var(--ink-50);
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--t-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--ink-200);
}

.faq-item.active {
    background: var(--white);
    border-color: var(--google-blue);
    box-shadow: var(--shadow-lg);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 28px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 700;
    color: var(--ink-900);
    cursor: pointer;
    text-align: left;
    gap: 16px;
}

.faq-icon {
    width: 32px;
    height: 32px;
    background: var(--google-blue-light);
    color: var(--google-blue-dark);
    border-radius: 50%;
    font-size: 20px;
    font-weight: 400;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--gradient-blue);
    color: var(--white);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 320px;
}

.faq-answer p {
    padding: 0 28px 24px;
    color: var(--ink-600);
    font-size: 15px;
    line-height: 1.75;
}

.faq-answer strong {
    color: var(--google-blue-dark);
}

/* ========== CONTACT ========== */
.contact {
    padding: 120px 0;
    background: var(--gradient-hero);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 20%, rgba(66, 133, 244, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(0, 188, 212, 0.3) 0%, transparent 40%);
    pointer-events: none;
}

.contact::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
    pointer-events: none;
}

.contact-wrapper {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
    align-items: center;
}

.contact-title {
    font-size: clamp(2rem, 4.2vw, 3.2rem);
    font-weight: 900;
    line-height: 1.1;
    margin: 16px 0 20px;
    letter-spacing: -1.5px;
}

.contact-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.75;
    margin-bottom: 36px;
}

.contact-desc strong {
    color: var(--accent-yellow);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 24px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--r-md);
    transition: var(--t-base);
}

.contact-method:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateX(8px);
}

.method-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-zalo-text {
    font-size: 12px;
    font-weight: 800;
    color: white;
    letter-spacing: -0.2px;
}

.method-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.method-value {
    font-size: 17px;
    font-weight: 800;
    color: var(--white);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    border-radius: var(--r-xl);
    padding: 44px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.25);
    color: var(--ink-900);
    position: relative;
}

.contact-form::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-blue);
    border-radius: var(--r-xl);
    z-index: -1;
    opacity: 0.1;
    transform: translate(8px, 8px);
}

.form-title {
    font-size: 26px;
    font-weight: 900;
    margin-bottom: 28px;
    text-align: center;
    letter-spacing: -0.5px;
}

.form-group {
    margin-bottom: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--ink-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--ink-100);
    border-radius: var(--r-sm);
    font-size: 15px;
    background: var(--ink-50);
    transition: var(--t-base);
    color: var(--ink-900);
    appearance: none;
    -webkit-appearance: none;
}

.form-group select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234a5677' stroke-width='2'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 18px;
    padding-right: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: var(--white);
    border-color: var(--google-blue);
    box-shadow: 0 0 0 4px rgba(66, 133, 244, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    text-align: center;
    font-size: 13px;
    color: var(--ink-500);
    margin-top: 18px;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--ink-900);
    color: rgba(255, 255, 255, 0.7);
    padding: 90px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--google-blue), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    margin-bottom: 56px;
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.75;
    margin: 22px 0;
    color: rgba(255, 255, 255, 0.55);
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    transition: var(--t-base);
    color: var(--white);
}

.social-link:hover {
    background: var(--gradient-blue);
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: var(--shadow-blue);
}

.footer-col {
    text-align: left;
}

.footer-col h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 22px;
}

.footer-col ul li {
    margin-bottom: 12px;
    font-size: 14px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.55);
    transition: var(--t-base);
}

.footer-col ul li a:hover {
    color: var(--google-blue);
    padding-left: 6px;
}

.contact-list li {
    color: rgba(255, 255, 255, 0.55);
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-list li svg {
    flex-shrink: 0;
    opacity: 0.7;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ========== FLOATING CONTACT ========== */
.floating-contact {
    position: fixed;
    bottom: 28px;
    right: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 999;
}

.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: var(--t-base);
    position: relative;
    text-decoration: none;
}

.float-btn svg {
    flex-shrink: 0;
}

.float-phone {
    background: linear-gradient(135deg, #34A853, #2E9B4A);
}

.float-zalo {
    background: linear-gradient(135deg, #0068FF, #0054D9);
}

.float-zalo-text {
    font-size: 13px;
    font-weight: 800;
    color: white;
    letter-spacing: -0.2px;
    line-height: 1;
}

.float-messenger {
    background: linear-gradient(135deg, #0084FF, #0066CC);
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-visual {
        height: 460px;
        max-width: 560px;
        margin: 0 auto;
    }

    .services-grid,
    .pricing-grid.active {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }

    .process-grid,
    .why-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-box:nth-child(2)::after {
        display: none;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .nav-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 768px) {
    .top-bar-content {
        justify-content: center;
        text-align: center;
    }

    .top-bar-text {
        font-size: 12px;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 16px;
        right: 16px;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 8px;
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--ink-100);
        border-radius: var(--r-md);
        margin-top: 8px;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu a {
        width: 100%;
        padding: 12px 18px;
    }

    .nav-buttons {
        display: none;
    }

    .hero {
        padding: 70px 0 90px;
    }

    .hero-stats {
        gap: 20px;
        flex-wrap: wrap;
    }

    .stat-item {
        min-width: calc(33% - 14px);
    }

    .stat-number {
        font-size: 24px;
    }

    .hero-visual {
        height: 460px;
    }

    .card-youtube,
    .card-facebook {
        width: 230px;
    }

    .card-youtube {
        left: 0;
        top: 30px;
    }

    .card-facebook {
        right: 0;
        top: 150px;
    }

    .card-stat {
        bottom: 40px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .section-header {
        margin-bottom: 52px;
    }

    .services,
    .pricing,
    .process,
    .why-us,
    .testimonials,
    .faq,
    .contact {
        padding: 80px 0;
    }

    .stats-banner {
        padding: 60px 0;
    }

    .process-grid,
    .why-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        gap: 16px;
    }

    .stat-box::after {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: left;
        gap: 32px;
    }

    .social-links {
        justify-content: flex-start;
    }

    .floating-contact {
        bottom: 16px;
        right: 16px;
    }

    .float-btn {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .service-card {
        padding: 40px 28px;
    }

    .pricing-card {
        padding: 40px 28px;
    }

    .pricing-tabs {
        max-width: 100%;
    }

    .tab-btn {
        padding: 12px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 50px 0 70px;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .hero-description {
        font-size: 15px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 8px 16px;
    }

    .hero-stats {
        gap: 14px;
    }

    .stat-item {
        min-width: calc(50% - 8px);
    }

    .section-title {
        font-size: 1.7rem;
    }

    .pricing-card,
    .service-card {
        padding: 36px 24px;
    }

    .amount {
        font-size: 34px;
    }

    .hero-visual {
        height: 420px;
    }

    .hero-card {
        padding: 22px;
    }

    .card-youtube,
    .card-facebook {
        width: 210px;
    }

    .metric-value {
        font-size: 28px;
    }

    .service-title,
    .pricing-name {
        font-size: 22px;
    }

    .btn-lg {
        padding: 16px 28px;
        font-size: 15px;
    }

    .contact-method {
        padding: 16px 18px;
        gap: 14px;
    }

    .method-icon {
        width: 40px;
        height: 40px;
    }

    .method-value {
        font-size: 15px;
    }

    .faq-question {
        padding: 18px 22px;
        font-size: 15px;
    }

    .faq-answer p {
        padding: 0 22px 20px;
    }
}

/* ========== CROSS-BROWSER / OS COMPATIBILITY ========== */
@supports not (backdrop-filter: blur(10px)) {
    .navbar {
        background: rgba(255, 255, 255, 0.98);
    }
    .hero-badge,
    .contact-method,
    .btn-outline,
    .trust-logo {
        background: rgba(255, 255, 255, 0.15);
    }
}

/* iOS Safari fixes */
@supports (-webkit-touch-callout: none) {
    .hero-card {
        transform: translate3d(0, 0, 0);
    }

    input, select, textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Print */
@media print {
    .navbar,
    .top-bar,
    .floating-contact,
    .hero-visual {
        display: none;
    }
}